EP2185953A1 - Piège à lumière, dispositif de couplage pour une trajectoire de faisceau ainsi que dispositif d'éclairage et dispositif d'observation optique - Google Patents

Piège à lumière, dispositif de couplage pour une trajectoire de faisceau ainsi que dispositif d'éclairage et dispositif d'observation optique

Info

Publication number
EP2185953A1
EP2185953A1 EP08801717A EP08801717A EP2185953A1 EP 2185953 A1 EP2185953 A1 EP 2185953A1 EP 08801717 A EP08801717 A EP 08801717A EP 08801717 A EP08801717 A EP 08801717A EP 2185953 A1 EP2185953 A1 EP 2185953A1
Authority
EP
European Patent Office
Prior art keywords
light
beam path
light trap
illumination
coupling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08801717A
Other languages
German (de)
English (en)
Other versions
EP2185953B1 (fr
Inventor
Christian Lücke
Peter Reimer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Zeiss Meditec AG
Original Assignee
Carl Zeiss Surgical GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Zeiss Surgical GmbH filed Critical Carl Zeiss Surgical GmbH
Priority to EP16196027.3A priority Critical patent/EP3156828B1/fr
Publication of EP2185953A1 publication Critical patent/EP2185953A1/fr
Application granted granted Critical
Publication of EP2185953B1 publication Critical patent/EP2185953B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/06—Means for illuminating specimens
    • G02B21/08—Condensers
    • G02B21/082—Condensers for incident illumination only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/003—Light absorbing elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/205—Neutral density filters

Definitions

  • Light trap, coupling device for a beam path and lighting device and optical observation device
  • the present invention initially relates to a light trap for eliminating false light. Furthermore, the invention relates to a device for coupling a first beam path in a second beam path, for example a
  • the invention also relates to a lighting device for an optical observation device and an optical observation device.
  • Optical observation devices are known in the most diverse ways. Optical observation devices may be formed, for example, as microscopes, such as stereomicroscopes, surgical microscopes, or the like. Such optical observation devices often have a lighting device. As a rule, such a lighting device generates at least one illumination beam path which serves to illuminate an object to be examined. Not infrequently, the illumination beam path is coupled into the observation beam path, which takes place via a coupling device provided for this purpose.
  • the coupling-in device can have, for example, a corresponding deflecting element, for example in the form of a beam splitter.
  • the sole phenomenon of using a beam splitter is that the proportion of the light of the illumination beam path that is not reflected at the beam splitter generates unwanted stray light, which is also referred to as a stray light.
  • This scattered light occurs in an undesirable manner in the observation beam, where it is for example a reduction of the Image contrast may result. Such a situation is indicated by way of example in FIG.
  • EP 1 058 141 B1 discloses a fluorescence microscope which likewise has a device for generating an illumination beam.
  • the illumination beam is deflected by a beam splitter.
  • an undesirable component of the illumination light is present, which is not reflected by the beam splitter, but passes through it.
  • a light trap is provided, which is designed in the form of a blackened rear wall. The unwanted part of the illumination light should be absorbed as completely as possible on the blackened rear wall.
  • Light components of the illumination light in the observation beam path, or by a lens element, which is for example the main objective can, below the lighting input into the object space. Due to the high light intensity disturb even low residual reflectance.
  • the present invention has for its object to take this circumstance into account and to provide solutions with which the elimination of disturbing stray light can be further improved.
  • solutions should be provided by the annoying stray light can not even arise, which typically occurs in the coupling of coaxial incident light illumination via a beam splitter in an observation beam path.
  • the individual aspects of the invention have the common basic idea that it is possible by means of a special embodiment of the light trap to achieve the resulting false light, which is in particular unwanted scattered light, when passing through a deflecting element, such as a
  • Beam splitter arises, can be prevented in a particularly efficient manner.
  • the light trap thus serves in particular for the destruction of stray light.
  • a light trap for eliminating stray light comprising a filter element, in particular a neutral filter element.
  • the light trap is initially characterized in that the light entry surface of the filter element has a hollow radius.
  • Such a light trap can be used in a wide variety of devices. Particularly advantageously, such a light trap can be used in optical observation devices, which are, for example, microscopes, for example, stereomicroscopes, for example in the form of
  • a filter element is used.
  • Such a filter element may, for example, be a neutral filter.
  • a neutral filter is generally a light filter for even attenuation of the light, especially in a broad spectral range.
  • Filter elements, as well as their use as light traps, are already basically known in the prior art.
  • the core of the present invention now consists in that the filter element has a special configuration, with this particular embodiment resulting in that the resulting stray light can be effectively eliminated.
  • the filter element has a light entry surface which has a hollow radius. This means that the light entry surface of the filter element has a curved course. The light entry surface thus has a curvature or depression directed inwards into the filter element.
  • the filter element of the light trap has a spherically curved light entry surface.
  • the light which is reflected due to the residual reflectance of the entrance surface of the filter element, is collimated by the hollow radius and can then be directed to a location where it does not interfere.
  • the curvature is chosen so that the resulting light spot is as small as possible.
  • the light entry surface of the filter element is thus also designed to collimate the reflected light. How this can be done in detail will be explained in more detail later in the description. Due to the collimation, no additional stray light is produced by other optical or mechanical components.
  • the value of the hollow radius of the light entry surface and the resulting curvature of the light entry surface may vary depending on the application and application for the light trap. In particular, the degree of curvature is also dependent on the space within the device in which the light trap is located, the acceptable size of the light spot or the distance that the light reflected from the entrance surface of the filter element collimated by the hollow radius up to the place where it does not bother, can / must. According to the invention, it is provided that the radius of curvature of the light entry surface is in the range of 25 mm to 200 mm. It is preferably provided that the radius of curvature of the light entry surface is in the range of 45 mm to 110 mm.
  • the configuration of the light trap according to the invention makes it possible for residues of light, in particular of illumination light, which are reflected by the light trap, to be directed to a specific location, for example onto an aperture, the location being so close in the region of the light trap, in particular in the light trap Area of the light entry surface of the filter element of the light trap, is that an integration of the light trap in areas with only a small available space, such as in an optical observation device, is possible. Further relevant details are explained in more detail in the course of the description.
  • the filter element at least partially consists of an absorption material (for example Schott neutral filter NG 1) or that at least the light entry surface is at least partially provided with an absorption material.
  • absorption material for example Schott neutral filter NG 1
  • the filter element may be, for example, layers deposited on mineral glasses (for example the layer "Umbra” as in the case of Zeiss sunscreens), organic glasses dyed in an immersion bath (for example Zeiss Clarlet Uni) or the like.
  • the filter element has a high degree of absorption of greater than or equal to 80%.
  • an absorption level of 99.9% (NG1) it is ensured that the light which transmits the hollow surface of the filter element is virtually completely absorbed on its second surface and only marginally small intensities leave the filter, which no longer disturb.
  • Light reflected at the second surface of the filter element undergoes once again the same absorption, so that an absorption degree of 80% is basically sufficient.
  • the light trap may be arranged on or in a light trap receiving device.
  • the recording of the light trap on / in the light trap receiving device can be such that a good thermal contact between Light trap and light trap receiving device consists.
  • the light trap is thermally coupled to the light trap receiving device.
  • the light trap can be glued to the light trap receiving device, be glued about in this.
  • a light trap according to the invention can be used in many different ways.
  • a device for coupling a first beam path into a second beam path, comprising a deflecting element and a light trap provided in the region of the deflecting element, which is characterized in that the light trap is formed in the manner according to the invention as described above.
  • the deflecting element can be designed as a beam splitter, as a beam splitter plate, as a partially transmissive mirror, as a beam splitter cube or the like. If the deflection element is designed as a partially transmissive mirror, this can advantageously be designed as a physical and / or geometric divider.
  • the light trap is preferably provided in the region of the deflecting element, so that the light trap is arranged after the deflecting element in the beam direction.
  • the light trap may be tilted in at least one plane, preferably in two planes.
  • the components deflection element and light trap are arranged along an axis, which may be the optical axis.
  • the tilt of the light trap can then be made with respect to this axis.
  • it can be provided that the light trap is tilted in at least one plane.
  • it is provided that the light trap is tilted in two planes.
  • the tilting is preferably carried out at the apex of the hollow entrance surface of the filter element, specifically around the tangential and / or sagittal plane.
  • the light entry surface of the filter element of the light trap has the described above on curvature.
  • the light entry surface can be spherically curved. Light impinges on the surface of the light entry surface and is partially reflected from there.
  • the light trap in the X / Z plane that is up or down, be tilted. The tilting then takes place at a certain angle with respect to the optical axis of the light incident on the light entry surface of the filter element. The surface normal at the point of impact is then tilted upwards or downwards with respect to the optical axis by a certain angle. Another tilt may similarly be in the X / Y direction, which then corresponds to left or right tilt.
  • the light which is reflected due to the residual reflectance of the entrance surface of the light trap, collimated by the hollow radius of the filter element and is directed via the tilt of the light trap - preferably in two planes - to a suitable location where it does not bother.
  • a suitable location may be, for example, a location within a housing or the like.
  • the filter element of the light trap can be designed or arranged such that light beams reflected back from the light entry surface of the filter element pass by the deflection element. In this way it can be prevented that light reflected by the light trap can pass through the deflection element again.
  • the advantageous embodiment ensures that the deflecting element is simply penetrated by illumination light. Light that is reflected back by the light trap is reflected so that it no longer passes through the deflecting element.
  • the coupling-in device can have a planar element for refocussing the light reflected by the light entry surface of the filter element.
  • the planar element can be designed in different ways. For example, this may be a diaphragm, advantageously a metal diaphragm, which is preferably designed in the form of a black diaphragm.
  • This planar element is associated with the light trap. Illumination light, which through the Deflecting element reaches the light trap is, as far as it is not absorbed by the light trap, directed to the sheet-like element.
  • the light trap has a filter element as described above with a curved light entry surface.
  • the light entry surface may advantageously be spherically curved. It is advantageously provided that the distance between the filter element of the light trap and the planar element, for example a diaphragm, is selected such that the focal point of the light reflected by the light entry surface of the filter element lies on the planar element. This depends on the one hand on the radius of curvature of the light entry surface of the filter element, and on the other hand on the distance of the filter element from the sheet-like element, in particular from the distance of the focal point to the surface of the filter element.
  • point on the surface of the light entry surface of the filter element is important, on / in which the light impinges on the light entry surface of the filter element. In other words, it is the location where the optical axis of the light impinging on the light entrance surface of the light trap passes through the surface of the light entrance surface of the light trap.
  • the distance between the focal point, which preferably lies on the planar element, and the point on the surface of the light entry surface of the filter element, at which the light impinges on the light entry surface of the filter element r / 2.
  • the shape of the surface of the filter element of the light trap is advantageously selected such that illumination light which strikes the light trap is reflected only to the planar element, for example the diaphragm.
  • the coupling device as means for coupling an illumination beam path in an observation beam path, in particular for Coupling a coaxial incident illumination in an observation beam path, be formed.
  • an illumination device for an optical observation device in particular for a microscope, is provided with a device for generating at least one illumination beam path and with a device for coupling at least one illumination beam path into at least one observation beam path.
  • the illumination device is characterized in that the coupling device is designed for coupling a first beam path into a second beam path, that the coupling device has a deflection element and a light trap provided in the region of the deflection element, that light trap has a filter element, in particular a neutral filter element, and that the light entry surface of the filter element has a hollow radius.
  • the illumination device is advantageously characterized in that the coupling device is formed in the manner according to the invention as described above.
  • the coupling device is a component of the illumination device.
  • the illumination device can be designed to generate a coaxial epi-illumination.
  • the light trap according to the invention as described above, the coupling device as described above or the lighting device according to the invention as described above are advantageously part of an optical observation device.
  • an optical observation device in particular a microscope, having a base body, and having a lighting device, which comprises at least one Provides illumination beam path to a deflection element, which directs the illumination light through a lens element to an object plane.
  • the optical observation device is characterized in that the illumination device is designed in a manner as described above.
  • Such an optical observation device for example a surgical microscope with a base body, contains an illumination system which provides an illumination beam path to a deflection element, such as a beam splitter, which directs the illumination light through the objective element, for example the microscope main objective, to the object region.
  • a deflection element such as a beam splitter
  • the deflecting element is penetrated by at least one observation beam path of the surgical microscope.
  • the illumination light which is not directed by the deflecting element to the object area, reaches the light trap.
  • an optical observation device in particular a microscope, is furthermore provided, having at least one observation beam path, with illumination device for generating at least one illumination beam path and with a device for coupling at least one illumination beam path into at least one
  • the optical observation device is then characterized in that the coupling device is formed in the manner according to the invention as described above.
  • the optical observer is advantageously a microscope, such as a surgical microscope for ophthalmic surgery, or more generally a stereomicroscope, or the like.
  • the illumination device can be advantageously designed to produce a coaxial epi-illumination.
  • the coupling device for coupling a coaxial incident illumination in at least one observation beam path can be formed.
  • the optical observation device advantageously has a lens element, which may, for example, be the main objective.
  • the coupling-in device can be provided above the objective element.
  • the optical observation device may also have other optical elements, such as at least one tube, at least one eyepiece, or the like.
  • the light trap of the coupling device of the illumination device can be thermally coupled to the base body of the optical observation device.
  • the light trap may be arranged, for example, in a light trap receiving device and is then in good thermal contact with it.
  • the light trap for example via the light trap receiving device, is in turn - connected to the base body of the optical observation device - for example via fastening screw. This measure has the effect that the light trap is thermally coupled to the base body of the optical observation device.
  • Light incident illuminating light is caused, can be dissipated well in this way in the main body of the optical observation device.
  • the planar element of the coupling device can be provided in the region of the objective element of the optical observation device.
  • the illumination light, which passes through the deflecting element to the light trap, is, insofar as it is not absorbed by the light trap, directed to the planar element, for example a metal diaphragm.
  • the planar element partially covers the objective element. In this way it is avoided that disturbing reflections occur at the lens element due to light which is reflected by the light trap.
  • Advantageous features of the present invention are the following: 1) A high curvature of the light trap. This measure makes it possible for the illumination light, which is reflected by the light trap, to reach the planar element, for example the black metal screen, in a small space available in the optical observation device, for example in the surgical microscope, ie in a relatively small space is focused.
  • FIG. 1 shows a schematic representation of a conventional coupling device according to the prior art without a light trap
  • Figure 2 shows a schematic representation of a conventional coupling device according to the prior art with light trap
  • FIG. 3 is a schematic representation of a first exemplary embodiment of an optical observation device according to the invention with a light trap according to the invention
  • Figure 4 shows a schematic representation of a second embodiment of an optical observation device according to the invention with light trap according to the invention
  • FIG. 5 shows a schematic representation of a third embodiment of an optical observation device according to the invention with inventive light trap.
  • FIG. 6 is a schematic illustration of a fourth exemplary embodiment of an optical observation device according to the invention with a light trap according to the invention;
  • Figure 7 is a plan view of a portion of a surgical microscope in which the fourth embodiment of Figure 6 is implemented;
  • FIG. 8 is a perspective view of the portion of a surgical microscope shown in Figure 7;
  • Figure 9 is a perspective view of the portion shown in Figure 8 of a surgical microscope without housing;
  • FIG. 10 shows a perspective view of the portion of a surgical microscope with a pan rate shown in FIG. 7;
  • FIG. 11 shows a plan view of a section of a surgical microscope according to FIG.
  • FIG. 7 in which the deflecting element of FIG.
  • stray light 14 arises, which undesirably enters the second beam path 12 and leads there, for example, to a reduction of the image contrast.
  • FIG. 2 A solution known in this sense is shown in FIG.
  • the coupling device 10 shown in FIG. 2 corresponds in terms of its basic structure to the coupling device shown in FIG. Behind the deflecting element 13, however, a light trap 20 in the form of a neutral filter is provided this time. Through this neutral filter 20 that can through the Deflection element 13 passing through stray light are at least partially absorbed.
  • the variant of a light trap 20 shown in FIG. 2 can not be used for all applications.
  • a light trap 20 is provided, as shown in FIGS. 3 to 6.
  • FIGS. 3 to 6 each show an illumination device 30 for an optical observation device, which can be, for example, a surgical microscope - for example for ophthalmic surgery -, generally a stereomicroscope or the like.
  • the optical observation device has an objective element 40.
  • At least one observation beam path 41 is generated in the optical observation device.
  • the illumination device 30 is designed to generate a coaxial incident illumination.
  • the illumination device 30 has a device 31 for generating at least one illumination beam path 34.
  • the illumination device 30 can have a number of optical elements 32, 33.
  • the illumination beam path 34 is coupled into the observation beam path 41 in the form of a coaxial incident light illumination.
  • a deflection element 13 for example a beam splitter, provided, which may be formed for example as a beam splitter plate, as a part-transparent mirror, as a beam splitter cube or the like.
  • a light trap 20 formed in a special way is provided.
  • the light trap 20 has a filter element 21 with a high degree of absorption of greater than 80%, in the illustrated examples a neutral filter element, on whose light inlet surface 22 has a hollow radius.
  • the radius of curvature of the hollow entrance surface 22 of the light trap 20 is advantageously between 25 mm and 200 mm, preferably between 45 mm and 110 mm.
  • the light, which is reflected due to the residual reflectance of the entrance surface 22 of the filter element 21 is collimated by the hollow radius of the light entry surface 22 and a tilting of the filter element 21, preferably in two planes, to a suitable location 42, for example within the housing of the optical Observation device steered where it does not bother. This is shown in FIGS. 3, 5 and 6. Due to the collimation, no additional stray light is produced by other optical or mechanical components.
  • the reflected beam is directed upwards to a suitable point 42.
  • the curvature of the entrance surface 22 of the light trap 20 is selected so that the light spot at the location 42 is as small as possible. This is influenced by a number of factors, in particular the distance that the light can travel from the entrance surface 22 to the corresponding location 42. In the example shown in FIG. 3, this path is relatively long, so that the entry surface 22 has a relatively long radius of curvature in the example shown in FIG.
  • the light entering the filter element 21 can also be completely absorbed by it.
  • FIG. In the examples illustrated in FIGS. 5 and 6, the reflected beam is deflected down to a suitable location 42. In the two examples, the distance traveled by the light beam is shorter than in the example shown in FIG. 3, so that the entrance surface 22 in the examples illustrated in FIGS. 5 and 6 has a shorter radius of curvature compared to FIG.
  • the location 42 is further away from the beam splitter 13. In this example, the location 42 is closer to the lens element 40.
  • the location 42 to which the light beam is directed is in the immediate vicinity of the deflecting element 13, for example directly next to the deflecting element 13.
  • a planar element 43 may be provided in the form of a special aperture, which will be explained in more detail below.
  • FIGS. 7 to 11 each show sections of an optical observation device 100, for example a surgical microscope, in which the illumination device according to the invention, in particular the illumination device illustrated in FIG. 6, is implemented.
  • FIGS. 7 and 8 show a section of the surgical microscope 100 with a main body 101
  • FIG. 9 shows the corresponding section without main body.
  • the surgical microscope 100 contains an illumination system which provides an illumination beam path to a deflection element 13, which directs the illumination light through the objective element 40, for example the microscope main objective, to the object area.
  • the deflecting element 13 is of the left and right observation beam 204, 205 of the
  • Surgical microscope 100 passes through (see Figure 10 and Figure 11).
  • the illumination light which is not deflected by the deflection element 13 to the object area, reaches the light trap 20.
  • the light trap 20 is glued into a light trap receptacle 23 and is in good thermal contact therewith.
  • the light trap receptacle 23 is in turn connected via fixing screws 102 and 103 fixed to the main body 101 of the surgical microscope 100. This measure has the effect that the light trap 20 is thermally coupled to the main body 101 of the surgical microscope 100.
  • the heat which is caused by the incident on the light trap 20 illumination light, can be dissipated well in the body 101 of the surgical microscope 100 in this way.
  • the illumination light which passes through the deflecting element 13 to the light trap 20, is directed to the metal screen 43 insofar as it does not absorb the light trap 20.
  • the metal bezel 43 partially covers the main microscope objective 40. In this way it is avoided that at the main microscope objective 40 due to light, which is reflected by the light trap 20, disturbing reflections occur.
  • the shape of the surface of the light trap 20, that is, its curvature, is selected so that the illumination light incident on the light trap 20 is reflected only to the stop 43.
  • FIG. 10 shows a section of the surgical microscope 100 with a pancake 200, which has lens elements 201, 202 and 203 for an optical axis 204 observation beam path.
  • the illumination system provides an illumination beam path 300.
  • the illumination system has an illumination optics 301 and comprises mirror units 302 and 303 (see also FIGS. 7 to 9) which direct the light which is guided by an optical waveguide, which is introduced into an optical waveguide reception separation 304, to the deflecting element 13.
  • the adjustment of the mirror units 302, 303 takes place via a rotary knob 305.
  • the light trap 20 has a spherically curved surface.
  • the illumination beam path 300 strikes with its optical axis at a point of impact 306 on the light entry surface of the light trap and is partially reflected back from there. The reflection takes place in a focal point 307 on the diaphragm 43.
  • the distance is advantageously the distance between the focal point 307 and the impact point 306 at which the optical axis of the illumination beam path 300 passes through the surface of the light entrance surface of the light trap 20.
  • the distance between point of impact 306 and focal point 307 can be r / 2.
  • the light trap 20 is tilted with respect to the optical axis of the illumination beam path 301 in the X / Z plane.
  • tilting down is realized.
  • a tilt in the X / Y plane, that is, to the left or right, is basically possible, but not realized in the example shown.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Microscoopes, Condenser (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

La présente invention concerne d'abord un piège à lumière (20) pour éliminer et prévenir l'apparition (de) la lumière parasite se présentant approximativement sous forme de lumière diffusée. L'invention concerne en outre un dispositif (10) pour coupler une première trajectoire de faisceau (34) dans une deuxième trajectoire de faisceau (42). Enfin, l'invention concerne également un dispositif d'éclairage (30) pour un dispositif d'observation optique ainsi qu'un dispositif d'observation optique. Afin de pouvoir encore mieux éliminer la lumière parasite perturbatrice sous forme de lumière diffusée, le piège à lumière (20) est conçu d'une manière particulière : il comporte un élément de filtrage (21), en particulier un élément de filtrage neutre qui est caractérisé en ce que la surface d'incidence de la lumière (22) de l'élément de filtrage (21) comporte un rayon creux, la surface d'incidence de la lumière (22) présentant une certaine courbure.
EP08801717.3A 2007-09-03 2008-08-26 Piège à lumière, dispositif de couplage pour une trajectoire de faisceau ainsi que dispositif d'éclairage et dispositif d'observation optique Active EP2185953B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16196027.3A EP3156828B1 (fr) 2007-09-03 2008-08-26 Microscope chirurgical

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007041792 2007-09-03
PCT/EP2008/006988 WO2009030404A1 (fr) 2007-09-03 2008-08-26 Piège à lumière, dispositif de couplage pour une trajectoire de faisceau ainsi que dispositif d'éclairage et dispositif d'observation optique

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP16196027.3A Division-Into EP3156828B1 (fr) 2007-09-03 2008-08-26 Microscope chirurgical
EP16196027.3A Division EP3156828B1 (fr) 2007-09-03 2008-08-26 Microscope chirurgical

Publications (2)

Publication Number Publication Date
EP2185953A1 true EP2185953A1 (fr) 2010-05-19
EP2185953B1 EP2185953B1 (fr) 2017-01-11

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EP16196027.3A Active EP3156828B1 (fr) 2007-09-03 2008-08-26 Microscope chirurgical
EP08801717.3A Active EP2185953B1 (fr) 2007-09-03 2008-08-26 Piège à lumière, dispositif de couplage pour une trajectoire de faisceau ainsi que dispositif d'éclairage et dispositif d'observation optique

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US (1) US8998430B2 (fr)
EP (2) EP3156828B1 (fr)
JP (4) JP2010538308A (fr)
DE (1) DE212008000052U1 (fr)
ES (1) ES2773823T3 (fr)
WO (1) WO2009030404A1 (fr)

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DE102011106453A1 (de) 2011-07-04 2013-01-10 Carl Zeiss Ag Verfahren und Vorrichtung zum zeitsequentiellen Aufnehmen dreidimensionaler Bilder
CN103575638B (zh) * 2013-07-26 2016-06-15 中国计量学院 一种光散射式粒子计数器及其粒径分布算法
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DE102017127931A1 (de) * 2017-11-27 2019-05-29 Henke-Sass, Wolf Gmbh Optikanordnung für ein Endoskop und Endoskop mit einer solchen Optikanordnung

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US20100182681A1 (en) 2010-07-22
WO2009030404A1 (fr) 2009-03-12
JP2016153898A (ja) 2016-08-25
ES2773823T3 (es) 2020-07-15
JP2010538308A (ja) 2010-12-09
US8998430B2 (en) 2015-04-07
JP2018077489A (ja) 2018-05-17
EP2185953B1 (fr) 2017-01-11
DE212008000052U1 (de) 2010-04-15
EP3156828A1 (fr) 2017-04-19
JP2014225024A (ja) 2014-12-04
EP3156828B1 (fr) 2019-12-25

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